clang/test/OpenMP/nvptx_throw.cpp

   1 // REQUIRES: nvptx-registered-target, staticanalyzer
   2
   3 /**
   4  * The first four lines test that a warning is produced when enabling
   5  * -Wopenmp-target-exception no matter what combination of -fexceptions and
   6  * -fcxx-exceptions are set, as we want OpenMP to always allow exceptions in the
   7  * target region but emit a warning instead.
   8 */
   9
  10 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device -fcxx-exceptions -fexceptions %s -verify=with -Wopenmp-target-exception -analyze
  11 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device -fcxx-exceptions -fexceptions %s -verify=with -Wopenmp-target-exception -analyze
  12 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device -fexceptions %s -verify=with -Wopenmp-target-exception -analyze
  13 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device %s -verify=with -Wopenmp-target-exception -analyze
  14
  15 /**
  16  * The following four lines test that no warning is emitted when providing
  17  * -Wno-openmp-target-exception no matter the combination of -fexceptions and
  18  * -fcxx-exceptions.
  19 */
  20
  21 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device -fcxx-exceptions -fexceptions %s -verify=without -Wno-openmp-target-exception -analyze
  22 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device -fcxx-exceptions %s -verify=without -Wno-openmp-target-exception -analyze
  23 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device -fexceptions %s -verify=without -Wno-openmp-target-exception -analyze
  24 // RUN: %clang_cc1 -fopenmp -triple nvptx64 -fopenmp-is-target-device %s -verify=without -Wno-openmp-target-exception -analyze
  25
  26 /**
  27  * Finally we should test that we only ignore exceptions in the OpenMP
  28  * offloading tool-chain
  29 */
  30
  31 // RUN: %clang_cc1 -triple nvptx64 %s -emit-llvm-only -verify=noexceptions
  32
  33 // noexceptions-error@37 {{cannot use 'throw' with exceptions disabled}}
  34
  35 #pragma omp declare target
  36 void foo(void) {
  37         throw 404; // with-warning {{target 'nvptx64' does not support exception handling; 'throw' is assumed to be never reached}}
  38 }
  39 #pragma omp end declare target
  40 // without-no-diagnostics